Finalizing AI Assistant Backend for Web App

I need assistance completing the backend development of an AI-powered assistant for my responsive web application. The app serves as a platform for timed, multiple-choice exams with modern AI features. My team has completed many core components of the project, and I need someone to focus on the backend for the AI assistant.

The AI assistant should function similarly to ChatGPT, Claude, or Gemini, but tailored specifically for the subject matter of my web app.

Deliverables include:
- Developing/optimizing the AI assistant’s backend architecture.
- Integration of subject-specific functionalities into the assistant.
- Ensuring smooth communication between the AI assistant and the front-end interface.
- API integration (if required).